Martin Sorrell Slams Holding Companies’ Data Strategies and Insists Facebook and Google Are Not ‘Frenemies’

S4 founder opened Adweek NexTech by challenging IPG and Publicis

Photo of Martin Sorrell at Adweek NexTech
Sorrell headlined the inaugural Adweek NexTech events this week. Sean T. Smith for Adweek

Martin Sorrell has examined the ways major holding companies are approaching advertising’s biggest challenges regarding customer data, and for the most part he is unimpressed.

@PatrickCoffee Patrick Coffee is a senior editor for Adweek.